Analysis of Arsenic(III) by the Cathodic Stripping Voltammetry

음극 벗김 전류법을 이용한 비소(III) 분석에 관한 연구

  • Yun, Young Ja (Department of Chemistry, College of Natural Science, Soong Sil University) ;
  • Lee, Hyung Sook (Department of Chemistry, College of Natural Science, Soong Sil University) ;
  • Ko, Weon Bae (Department of Chemistry, College of Natural Science, Se-Jong University) ;
  • Kim, Chung Hee (Department of Chemistry, College of Science, Sook Myung Women's University)
  • 윤영자 (숭실대학교 자연과학대학 화학과) ;
  • 이형숙 (숭실대학교 자연과학대학 화학과) ;
  • 고원배 (세종대학교 자연과학대학 화학과) ;
  • 김정희 (숙명여자대학교 이과대학 화학과)
  • Received : 1992.10.30
  • Published : 1992.12.25

Abstract

The effects of metal ions on the arsenic(III) stripping peak were examined by the cathodic stripping voltammetry. The reduction stripping peak potential and current of arsenic(III) value were -0.79V(vs. Ag/AgCl). $0.86{\mu}A$ by using 0.1N-hydrochloric acid solution. When 10 times of Cu(II) was added to the solution, the reduction stripping peak potential of arsenic(III) was the value of -0.84V(vs. Ag/Cl), which showed a good agreement with theoretical value -0.84V(vs. Ag/Cl) by using 0.1N hydrochloric acid solution. Lead(II) and copper(II) increased the stripping peak heigh of arsenic(III), Among them, the copper(II) extremely enhanced it.

Keywords

Cathodic stripping voltammetry;Arsenic(III)